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9925 (1981 EU24)
Classification: Main-belt Asteroid          SPK-ID: 2009925
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09706691148931988 5.8065e-08  
a 2.805790284893924 3.0317e-08 au
q 2.533440887652532 1.6288e-07 au
i 3.224624442527309 6.6764e-06 deg
node 329.2215696938421 0.00010512 deg
peri 64.52658969803691 0.00011081 deg
M 285.7939028184878 4.0578e-05 deg
tp 2457754.349289224286
(2016-Dec-31.84928922)
0.00019659 JED
period 1716.647943485699
4.70
2.7823e-05
7.618e-08
d
yr
n .2097110251208588 3.399e-09 deg/d
Q 3.078139682135317 3.326e-08 au
  Orbit Determination Parameters
   # obs. used (total)      824  
   data-arc span      12177 days (33.34 yr)  
   first obs. used      1981-02-12  
   last obs. used      2014-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56105  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 00:31:48  

Additional Information
 Earth MOID = 1.54005 au 
 Jupiter MOID = 2.32432 au 
 T_jup = 3.314 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.0 mag n/a MPO263438  

9925 (1981 EU24)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 19990202/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1981 EU24 = 1988 VX13 = 1997 RG7 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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